package com.ruoyi.framework.security.filter;

import com.ruoyi.common.core.domain.model.LoginUser;
import com.ruoyi.common.utils.SecurityUtils;
import com.ruoyi.common.utils.StringUtils;
import com.ruoyi.framework.web.service.TokenService;
import lombok.extern.slf4j.Slf4j;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.security.authentication.UsernamePasswordAuthenticationToken;
import org.springframework.security.core.context.SecurityContextHolder;
import org.springframework.security.web.authentication.WebAuthenticationDetailsSource;
import org.springframework.stereotype.Component;
import org.springframework.web.filter.OncePerRequestFilter;

import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.util.Arrays;
import java.util.List;

/**
 * token过滤器 验证token有效性
 *
 * @author ruoyi
 */
@Component
@Slf4j
public class JwtAuthenticationTokenFilter extends OncePerRequestFilter {

    public static final List<String> REQUEST_URI_ADMIN_LIST = Arrays.asList("/admin", "/actuator", "/captchaImage");

    public static final String[] REQUEST_URI_ADMINS = REQUEST_URI_ADMIN_LIST.toArray(new String[]{});

    @Autowired
    private TokenService tokenService;

    @Override
    protected void doFilterInternal(HttpServletRequest request, HttpServletResponse response, FilterChain chain)
            throws ServletException, IOException {

        //处理来自springBootAdmin的请求，并过滤不处理
        if (requestInfo(request)) {
            //继续处理请求
            chain.doFilter(request, response);
            return;
        }

        //根据请求信息获取用户信息
        LoginUser loginUser = tokenService.getLoginUser(request);
        if (StringUtils.isNotNull(loginUser) && StringUtils.isNull(SecurityUtils.getAuthentication())) {
            //验证令牌有效期，并刷新令牌有效期
            tokenService.verifyToken(loginUser);
            UsernamePasswordAuthenticationToken authenticationToken = new UsernamePasswordAuthenticationToken(loginUser, null, loginUser.getAuthorities());
            authenticationToken.setDetails(new WebAuthenticationDetailsSource().buildDetails(request));
            SecurityContextHolder.getContext().setAuthentication(authenticationToken);
        }
        //继续处理请求
        chain.doFilter(request, response);
    }

    private boolean requestInfo(HttpServletRequest request) {
        String requestUri = request.getRequestURI();
        if (StringUtils.startsWithAny(requestUri, REQUEST_URI_ADMINS)) {
            return true;
        }
        //log.error("requestURI:{}", requestUri);
        return false;
    }

}
